Janus

Definitions

  • WordNet 3.6
    • n Janus (Roman mythology) the Roman god of doorways and passages; is depicted with two faces on opposite sides of his head
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Webster's Revised Unabridged Dictionary
  • Interesting fact: January is named for the Roman god Janus. Janus was a temple god who could look forward and backward at the same time
    • n Janus (Rom. Antiq) A Latin deity represented with two faces looking in opposite directions. Numa is said to have dedicated to Janus the covered passage at Rome, near the Forum, which is usually called the Temple of Janus. This passage was open in war and closed in peace.
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Century Dictionary and Cyclopedia
    • n Janus A primitive Italic solar divinity regarded among the Romans as the doorkeeper of heaven and the especial patron of the beginning and ending of all undertakings. As the protector of doors and gateways, he was represented as holding a staff or scepter in the right hand and a key in the left; and, as the god of the sun's rising and setting, he had two faces, one looking to the east, the other to the west. His temple at Rome was kept open in time of war and was closed only in the rare event of universal peace.
    • n Janus Hence A doorkeeper.
    • n Janus [NL.] A genus of hymenopterous insects of the family Uroceridæ, resembling Cephus, but distinguished from it by the filiform antennæ. There is one European species, J. connectus, and one North American, J. flaviventris.
    • n Janus A double monster with the two heads looking in opposite directions. Also called janiceps.
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Etymology

Webster's Revised Unabridged Dictionary
L. See January

Usage

In literature:

These are the temples of Saturn and Janus.
"Roman Antiquities, and Ancient Mythology" by Charles K. Dillaway
With these Janus dyes a two-bath process is followed.
"The Dyeing of Cotton Fabrics" by Franklin Beech
Well, this Janus was called 'double-face,' and could see before and behind him.
"Handy Andy, Volume One" by Samuel Lover
Come to the street Janus, and I will warrant you safety and life.
"Aurelian" by William Ware
Janus possessed no temples in the ordinary acceptation of the word, but all the gates of cities were dedicated to him.
"Myths and Legends of Ancient Greece and Rome" by E.M. Berens
This fortress lord Janus built, this Saturn; the name of this was once Janiculum, of that Saturnia.
"The Aeneid of Virgil" by Virgil
Portrait of Janus Silvius.
"Rembrandt and His Works" by John Burnet
Janus, god of doors, what we call nowadays a janitor.
"Pipefuls" by Christopher Morley
I love Noah when he is himself; but, as Janus, I love him not.
"Lavengro The Scholar, the Gypsy, the Priest" by George Borrow
Janus, Jupiter, and Juno are concerned in this rite, Ceres coming last.
"The Religious Experience of the Roman People" by W. Warde Fowler
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In poetry:

Janus am I; oldest of potentates;
Forward I look, and backward, and below
I count, as god of avenues and gates,
The years that through my portals come and go.
"In The Harbour: The Poet's Calendar" by Henry Wadsworth Longfellow
Old Janus must be double-faced;
He promised long ago
The maple syrup not to taste,
Nor steal the roses from the waist
Of one, a damsel fair and chaste
As April snow.
"Is It April?" by Hattie Howard

In news:

Janus International and IOA Insurance Partner to Provide Self-Storage Discounts.
Shares of Janus Capital (JNS) got hit hard last month when two of its largest equity funds were yanked from a Bank of America Merrill Lynch portfolio.
Janus Found Not Liable for Funds' Prospectuses.
Source Code, Janus Films & Cinema for the Ear.
Legislature Behaving Like Janus on Sharia Law.
Cicily Janus The New Face of Jazz.
Angel's Rock Report–RHCP, Megadeth, Janus .
Janus v Black Veil Brides.
Tonight, they take on Janus .
Q101 Presents Janus @ Mojoe's Of Joliet .
Jean-Pierre Darroussin (right) plays a police detective hot on the trail of Idrissa,… (Janus Films ).
Janus — " Lifeless " Video Lesson.
Janus aren't the kind of rock band that's satisfied with writing songs about getting wasted and partying hard every night.
THE Janus-faced nature of atomic power has inspired much writing.
'The Janus Reprisal ' by Jamie Freveletti.
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In science:

Three-dimensional conformal Chern-Simons theories with N = 4 supersymmetry were studied by Witten and Gaiotto in relation to Janus configurations of fourdimensional N = 4 super Yang-Mills theory .
Three-algebras, triple systems and 3-graded Lie superalgebras
Witten, Janus configurations, Chern-Simons couplings, and the theta-angle in N=4 super Yang-Mil ls theory, [arXiv:0804.2907 [hep-th]].
Three-algebras, triple systems and 3-graded Lie superalgebras
To conclude we have constructed a general master equation for Janus Faced commutation relations [F , G † ] = 1 and shown that the eigenstate G occurs as a short term solution and the eigenstate F occurs as a steady state solution.
A Generalized Master Equation for Janus Faced Coherent States
We have also shown that the master equation works for all the Janus Faced coherent state operators.
A Generalized Master Equation for Janus Faced Coherent States
First, we prove that (cr(M∗), ˜cr(M ∗ )) is a Janus functor.
Polynomial functors from Algebras over a set-operad and non-linear Mackey functors
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